BidirectionalDictionary.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntityDesign / Design / System / Data / Entity / Design / PluralizationService / BidirectionalDictionary.cs / 1305376 / BidirectionalDictionary.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 
using System;
using System.Collections.Generic; 
using System.Linq;
using System.Text;
using System.Globalization;
 
namespace System.Data.Entity.Design.PluralizationServices
{ 
    ///  
    /// This class provide service for both the singularization and pluralization, it takes the word pairs
    /// in the ctor following the rules that the first one is singular and the second one is plural. 
    /// 
    internal class BidirectionalDictionary
    {
        internal Dictionary FirstToSecondDictionary { get; set; } 
        internal Dictionary SecondToFirstDictionary { get; set; }
 
        internal BidirectionalDictionary() 
        {
            this.FirstToSecondDictionary = new Dictionary(); 
            this.SecondToFirstDictionary = new Dictionary();
        }

        internal BidirectionalDictionary(Dictionary firstToSecondDictionary) : this() 
        {
            foreach (var key in firstToSecondDictionary.Keys) 
            { 
                this.AddValue(key, firstToSecondDictionary[key]);
            } 
        }

        internal virtual bool ExistsInFirst(TFirst value)
        { 
            if (this.FirstToSecondDictionary.ContainsKey(value))
            { 
                return true; 
            }
            return false; 
        }

        internal virtual bool ExistsInSecond(TSecond value)
        { 
            if (this.SecondToFirstDictionary.ContainsKey(value))
            { 
                return true; 
            }
            return false; 
        }

        internal virtual TSecond GetSecondValue(TFirst value)
        { 
            if (this.ExistsInFirst(value))
            { 
                return this.FirstToSecondDictionary[value]; 
            }
            else 
            {
                return default(TSecond);
            }
        } 

        internal virtual TFirst GetFirstValue(TSecond value) 
        { 
            if (this.ExistsInSecond(value))
            { 
                return this.SecondToFirstDictionary[value];
            }
            else
            { 
                return default(TFirst);
            } 
        } 

        internal void AddValue(TFirst firstValue, TSecond secondValue) 
        {
            this.FirstToSecondDictionary.Add(firstValue, secondValue);

            if (!this.SecondToFirstDictionary.ContainsKey(secondValue)) 
            {
                this.SecondToFirstDictionary.Add(secondValue, firstValue); 
            } 
        }
    } 

    internal class StringBidirectionalDictionary : BidirectionalDictionary
    {
 
        internal StringBidirectionalDictionary()
            : base() 
        { } 
        internal StringBidirectionalDictionary(Dictionary firstToSecondDictionary)
            : base(firstToSecondDictionary) 
        { }

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")]
        internal override bool ExistsInFirst(string value) 
        {
            return base.ExistsInFirst(value.ToLowerInvariant()); 
        } 

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")] 
        internal override bool ExistsInSecond(string value)
        {
            return base.ExistsInSecond(value.ToLowerInvariant());
        } 

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")] 
        internal override string GetFirstValue(string value) 
        {
            return base.GetFirstValue(value.ToLowerInvariant()); 
        }

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")]
        internal override string GetSecondValue(string value) 
        {
            return base.GetSecondValue(value.ToLowerInvariant()); 
        } 

    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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